This Asset was made free because I wanted to focus Playtime Painter, which has similar shader, but developed in different direction.
If you have any questions about Toon Water Asset, please feel free to ask them here.
Some suggestions from the top of my head:
* If water is not visible outside of the terrain, make sure clear color's alpha of your camera is set to 0 ( or 1, don't remember which).
* Shadow strength of the directional light should be 1 to have that cartoonish feel.